Battery based standalone SHS （solar home systems） are installed in Malawi to expedite rural electrification. A study was conducted to analyze the performance of SHS in low and high insolation areas of Malawi. It is ...Battery based standalone SHS （solar home systems） are installed in Malawi to expedite rural electrification. A study was conducted to analyze the performance of SHS in low and high insolation areas of Malawi. It is found that if the system is designed in accordance to procedures stipulated in Malawi standards, then it is capable of operating annually with mean performance ratio of 0.68, PV array production factor of 0.88 and system efficiency of 78% indicating a good system performance. The system is more reliable in high insulation areas （loss of load probability = 0.09） and when the battery charging is given priority during daytime, the overall system＇s reliability is improved by 40%. However, if the system is under-designed its performance ratio is reduced considerably and the system becomes less reliable. In overall, SHS in Malawi perform reliably if the system is well designed and maintained.展开更多
This paper describes a design method and construction of a PV hybrid system for household electrification in remote area which has typical important electrical loads for daily life such as television, refrigerator, el...This paper describes a design method and construction of a PV hybrid system for household electrification in remote area which has typical important electrical loads for daily life such as television, refrigerator, electric fan, coffee maker, and radio. The paper presents the design method which is a short and correct method for the PV Hybrid system design. The result of the proposed design method is finally simulated by Homer software to optimize and prove the result. From the simulation, the output shows that the proposed method is proper for using to design the sizing of PV hybrid system. After the design, a PV hybrid system is constructed accordingly to the system design. A PV hybrid prototype is constructed as a small house which is specially constructed for demonstration of the proposed system. The PV hybrid system therefore has the size of PV 1.8 kWp, battery 20 kWh, and diesel generator 3 kW. After a long implementation of the system, the results of monitored data show that the designed PV hybrid system can deliver the power to the house continually 24 hours as it is originally designed. This can ensure that the proposed method of PV hybrid system design is correct and can be used for design the PV hybrid system for electrical utility in the remote area where has no an electric grid.展开更多
两年一届的Mondial du Batiment三展将于今年11月6-10日在巴黎北郊维勒班展览中心举行。上届展会于2015年11月10日圆满落幕。展会包括欧洲最大的建筑展会--巴黎国际建筑展览会(BATIMAT),巴黎国际供暖、制冷、空调、新能源及家用电气展览...两年一届的Mondial du Batiment三展将于今年11月6-10日在巴黎北郊维勒班展览中心举行。上届展会于2015年11月10日圆满落幕。展会包括欧洲最大的建筑展会--巴黎国际建筑展览会(BATIMAT),巴黎国际供暖、制冷、空调、新能源及家用电气展览会(INTERCLIMA+ELEC)以及法国国际卫浴展(IDEOBAIN)。本届Mondial du Batiment三展联展举办,吸引了众多国际观众前来观展,庞大的观众规模是展会的一大亮点,也凸显了其作为行业知名贸易盛会的重要地位。展开更多
文摘Battery based standalone SHS （solar home systems） are installed in Malawi to expedite rural electrification. A study was conducted to analyze the performance of SHS in low and high insolation areas of Malawi. It is found that if the system is designed in accordance to procedures stipulated in Malawi standards, then it is capable of operating annually with mean performance ratio of 0.68, PV array production factor of 0.88 and system efficiency of 78% indicating a good system performance. The system is more reliable in high insulation areas （loss of load probability = 0.09） and when the battery charging is given priority during daytime, the overall system＇s reliability is improved by 40%. However, if the system is under-designed its performance ratio is reduced considerably and the system becomes less reliable. In overall, SHS in Malawi perform reliably if the system is well designed and maintained.
文摘This paper describes a design method and construction of a PV hybrid system for household electrification in remote area which has typical important electrical loads for daily life such as television, refrigerator, electric fan, coffee maker, and radio. The paper presents the design method which is a short and correct method for the PV Hybrid system design. The result of the proposed design method is finally simulated by Homer software to optimize and prove the result. From the simulation, the output shows that the proposed method is proper for using to design the sizing of PV hybrid system. After the design, a PV hybrid system is constructed accordingly to the system design. A PV hybrid prototype is constructed as a small house which is specially constructed for demonstration of the proposed system. The PV hybrid system therefore has the size of PV 1.8 kWp, battery 20 kWh, and diesel generator 3 kW. After a long implementation of the system, the results of monitored data show that the designed PV hybrid system can deliver the power to the house continually 24 hours as it is originally designed. This can ensure that the proposed method of PV hybrid system design is correct and can be used for design the PV hybrid system for electrical utility in the remote area where has no an electric grid.
文摘两年一届的Mondial du Batiment三展将于今年11月6-10日在巴黎北郊维勒班展览中心举行。上届展会于2015年11月10日圆满落幕。展会包括欧洲最大的建筑展会--巴黎国际建筑展览会(BATIMAT),巴黎国际供暖、制冷、空调、新能源及家用电气展览会(INTERCLIMA+ELEC)以及法国国际卫浴展(IDEOBAIN)。本届Mondial du Batiment三展联展举办,吸引了众多国际观众前来观展,庞大的观众规模是展会的一大亮点,也凸显了其作为行业知名贸易盛会的重要地位。
